CN107615369A - control device, display device, control method and control program - Google Patents
control device, display device, control method and control program Download PDFInfo
- Publication number
- CN107615369A CN107615369A CN201680026141.8A CN201680026141A CN107615369A CN 107615369 A CN107615369 A CN 107615369A CN 201680026141 A CN201680026141 A CN 201680026141A CN 107615369 A CN107615369 A CN 107615369A
- Authority
- CN
- China
- Prior art keywords
- polarity inversion
- frequency
- refresh rate
- display device
- display
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3618—Control of matrices with row and column drivers with automatic refresh of the display panel using sense/write circuits
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3614—Control of polarity reversal in general
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0247—Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2340/00—Aspects of display data processing
- G09G2340/04—Changes in size, position or resolution of an image
- G09G2340/0407—Resolution change, inclusive of the use of different resolutions for different screen areas
- G09G2340/0435—Change or adaptation of the frame rate of the video stream
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Optics & Photonics (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
Save the consumption electric power of the polarity inversion of display device.Display control unit (3) possesses：Refresh rate test section (31), the refresh rate of detection display device (100 or 200)；Polarity inversion control unit (32 or 33), to carry out polarity inversion less than the frequency of the refresh rate.
Description
Technical field
The present invention is relevant control device etc., and the control device is written to the data-signal of the pixel of display device
Polarity is controlled.
Background technology
Existing known liquid crystal display device, in order to prevent the calcination phenomenon of display picture, by making source electrode driver
The polarity of output voltage inverted per frame, whenever being refreshed, makes voltage (the data electricity of data-signal for being written to pixel
Pressure) polarity inverted.In recent years, animation is made more by the frame number for lifting the refresh rate of display picture to increase per second, exploitation
The technology shown glibly.If however, lifting refresh rate if, the polarity of the output voltage of the source electrode driver of time per unit
The number of reversion also becomes more.Therefore, as such as consumption electric power of the discharge and recharge to pixel and data signal line increases, therefore have
The problem of consumption electric power increase of the driving of display device.In order to correspond to this problem, such as the technology of patent document 1 is recorded in,
Change type of drive (dot inversion driving and the column inversion drive of polarity inversion corresponding to refresh rate (typically driving or speed driving)
Move).
Patent document 1：Japanese Laid-Open Patent Publication " 2009-No. 44438 publication (publication date of JP：2 months 2009 26
Day) "
It is the type of drive for only changing polarity inversion however, because being recorded in the technology of the patent document 1, so
Have the problem of being merely able to limitedly save the effect of consumption electric power.
The present invention be in view of described problem point, its object is to, there is provided it is achievable can save display device polarity it is anti-
Control device of consumption electric power turned etc..
The control device of a mode of the invention, it is the pixel that can change write-in display device to solve described problem
The control device of the polarity inversion frequency of data-signal, it is characterised in that possess：Test section, detect the aobvious of the display device
Show the refresh rate of picture；Polarity inversion control unit, with described in the frequency progress of the refresh rate detected less than the test section
Polarity inversion.
In order to solve described problem, the control method of a mode of the invention, for the pixel of write-in display device can be changed
The control method of the control device of the polarity inversion frequency of data-signal, it is characterised in that include：Detecting step, described in detection
The refresh rate of the display picture of display device；Polarity inversion rate-determining steps, with the brush detected less than the detecting step
The frequency of new rate carries out the polarity inversion.
If according to the mode of the present invention, the effect of the consumption electric power with the polarity inversion that can save display device.
Brief description of the drawings
Fig. 1 is the block diagram that the major part for the display device for representing embodiment of the present invention one is formed.
Fig. 2 is the flow of the polarity inversion control process flow of progress in the reversal frequency determination section for represent the display device
Figure.
Pole when Fig. 3 is the refresh rate for the display panel for representing the display device, the driving opportunity of source electrode driver and driving
The figure of the relation of property.
Pole when Fig. 4 is the refresh rate for the display panel for representing the display device, the driving opportunity of source electrode driver and driving
Other figures of the relation of property.
Fig. 5 is the block diagram that the major part for the display device for representing embodiment of the present invention two is formed.
Fig. 6 is the flow chart of the polarity inversion control process flow for the reversal frequency determination section for representing the display device.
Pole when Fig. 7 is the refresh rate for the display panel for representing the display device, the driving opportunity of source electrode driver and driving
The figure of the relation of property.
When Fig. 8 is the driving of the refresh rate of the display panel for the display device for representing embodiment of the present invention three, source electrode driver
The figure of the relation of polarity when machine and driving.
Embodiment
[embodiment one]
Hereinafter, reference picture one to four illustrates the first embodiment on the present invention.Fig. 1 is the display device for representing the present invention
The figure that 100 major part is formed.In addition, in the present embodiment, display device 100 is said as liquid crystal display device
It is bright.However, the composition and function of display device 100, if carrying out the display device of polarity inversion described later, also can be suitably used for liquid
Display device beyond crystal device.Display device 100 as shown, possesses main frame 1, display control unit (control device) 3, shown
Show drive division 4 and display panel 2.
《The composition of major part》
Display panel 2, it is the display picture of display device 100.By the multiple pixels having in display panel 2, corresponding to aobvious
The data-signal for the view data shown writes via source electrode line (data signal line), is shown in display panel 2 and represents view data
Image.In addition, " view data " refers to, the data of still image or the image of the frame amount of animation one are represented.
Drive division 4 is shown, is the driver for driving display panel 2.Drive division 4 is shown, such as in display panel 2
The control circuit that is formed on substrate and realize.Drive division 4 is shown, is that can correspond to the expression driving received from display control unit 3
The signal (timing signals) on the opportunity of display panel 2, the driver of display panel 2 is driven with multiple refresh rates.It is used as this implementation
One of mode, display drive division 4 are to drive display panel 2 with the refresh rate of any one of 60Hz and 120Hz.However, display
The setting not limited to this of the refresh rate of panel 2.For example, display drive division 4 can also be that display panel can be adjusted in units of 1Hz
2 refresh rate.Hereafter, " general driving " is referred to as with 60Hz refresh rate driving display panel 2, driven with 120Hz refresh rate
Referred to as " refresh driving at a high speed ".Show drive division 4 from the receiving time signal of display control unit 3 and view data when, this when
Machine signal controls display panel 2 on defined opportunity so that it shows the view data (picture refreshing).Drive division 4 is shown, is contained
There is the driver needed for the driving of display panel 2, at least containing source electrode driver 41.
Source electrode driver 41, it is the driver for applying the voltage corresponding to view data to the source electrode line of display panel 2.Source
Driver 41, on opportunity as defined in timing signals, the voltage corresponding to view data is applied to source electrode line.Thus, showing
Each pixel of panel 2, data-signal of the write-in corresponding to described image data.Image is represented it is, being shown in display panel 2
The image (picture refreshing of display panel 2) of data.
Here, the voltage that source electrode driver 41 applies to source electrode line, is alternating voltage.Therefore, in the polarity of data-signal
Corresponding to its polarity of the periodic reversal of frequency of alternating voltage.In addition, " polarity of data-signal " said herein, refers to set and shows
Show the pixel electrode of picture to counter electrode current potential, on the basis of polarity.In other words, source electrode driver 41 passes through change
The frequency of the alternating voltage of application, change the frequency of the polarity inversion for the data-signal for corresponding to the frequency.Hereafter, data-signal
Polarity inversion, be only referred to as " polarity inversion ".The frequency for the alternating voltage that source electrode driver 41 applies, passes through display control unit
3 and control.In addition, the applying method (inverting method of polarity) of the alternating voltage of source electrode driver 41 is not particularly limited.Example
Such as, method of the source electrode driver 41 as polarity inversion, frame inversion driving mode, column inversion type of drive, line can also be used
The either method of inversion driving mode or dot inversion type of drive.
Main frame 1, it is the view data that acquirement or generation are shown in display panel 2, shifts the view data to display control
Portion.In addition, main frame 1 can also be with view data simultaneously, by represent show the view data in the opportunity of display panel 2
Image update flag (time reference) be sent to display control unit 3.In addition, the form of view data, if the energy of display panel 2
If the form of display, then without being not particularly limited.
Display control unit 3, be the refreshing that would be used for display panel 2 view data, with refresh opportunity be sent to it is aobvious
Show drive division.In addition, display control unit 3, is the polarity inversion person for controlling the data-signal for showing drive division 4.Display control
Portion 3, it is to include holder 10, TG (clock generator) 20 and reversal frequency determination section 30 in more detail.Holder 10, it is
The temporarily holder for the view data that storage receives from main frame 1.Holder 10, it is from main frame 1 to the next view data of reception
Untill (holder 10 is capped), the view data of write-in is kept.
TG20, it is generation timing signals person.TG20, (that is, from master when the view data change that holder 10 is kept
When machine 1 transmits new view data), view data is read from holder 10, view data and timing signals are sent to display
Drive division 4.When TG20 sends timing signals, refreshing information is sent to reversal frequency determination section 30." refreshing information " herein,
Refer to the information for comprising at least the information on the opportunity refresh for representing display panel 2.In addition, lifes of the TG20 from timing signals
At interval, the refreshing mode (high speed described later refreshes driving or general driving) of display panel 2 is specified, whether expression is refreshed
Information while, or the information for indicating whether to be refreshed can also be substituted, by it is described represent refreshing in a manner of packet
It is contained in refreshing information.In addition, TG20 from the transmission from holder 10 by that when having fixed time, can also again read off
View data (with identical view data during the transmission), the view data and timing signals are sent to display drive division 4.
Thus, even in new view data not from the case that main frame 1 sends over, TG20 can also fix time in per unit to be made to show
Show that panel 2 refreshes.Alternatively, it is also possible to be TG20 correspond to from main frame 1 receive time reference and generate timing signals.
Reversal frequency determination section 30, it is the frequency that the alternating voltage to the application of source electrode driver 41 is determined based on refreshing information
(i.e. the frequency of the polarity inversion of determination data signal), the display control of source electrode driver 41 is controlled in a manner of applying the frequency
Device.Reversal frequency determination section 30, include refresh rate test section (test section) 31 and polarity inversion control unit 32.Reversal frequency is determined
Determine portion 30, be from TG20 receive refreshing information when, refresh rate is detected in refresh rate test section 31 first, then in polarity
Invert in control unit 32, corresponding to the testing result, carry out the decision of polarity inversion frequency and the control of source electrode driver 41.
Refresh rate test section 31, it is the refresh rate person from refreshing information detection display panel 2.In addition, refresh rate test section
The detection method of 31 refresh rate is not particularly limited.For example, refresh rate test section 31, from the time of TG20 reception refreshing informations
Interval, specify the refresh rate of display panel 2.In addition, refresh rate test section 31, includes in refreshing information and represents display panel
In the case of the information of 2 refreshing mode, refresh rate is specified from the refreshing mode.For example, the mode of refreshing is general driving
Situation, refresh rate 60Hz, at a high speed refresh driving situation be 120Hz.
Polarity inversion control unit 32, the refresh rate of the detection of refresh rate test section 31 is corresponded to, control source electrode driver 41
The frequency person of the alternating voltage of application.In more detail, polarity inversion control unit 32, correspond to refresh rate and determine polarity inversion
Frequency, control source electrode driver in a manner of the polarity inversion frequency of decision carries out polarity inversion.
(polarity inversion control process)
Here, reference picture 2 illustrates to determine polarity inversion frequency and control process from refreshing information on reversal frequency determination section 30
(polarity inversion control process, control method).Fig. 2, it is the flow chart for the flow for representing polarity inversion control process.Reversal frequency
Determination section 30 be from TG20 obtain refreshing information (S100) when, refresh rate test section 31 from the refreshing information detect show
The refresh rate (S102, detecting step) of panel 2.Refresh rate test section 31 is the pole when refresh rate of display panel 2 is detected
Whether sex reversal control unit 32 is the refresh rate for judging the detection of refresh rate test section 31 more than fixed frequency (S104).
Situation (in S104 be yes) of the refresh rate more than fixed frequency, polarity inversion control unit 32 is by controlling source electrode
Driver 41 applies the frequency of alternating voltage, to be less than the frequency of refresh rate in the polarity inversion of the data-signal of source electrode driver 41
Carry out (S106, polarity inversion rate-determining steps).It is, polarity inversion control unit 32, it is synchronous compared to the opportunity of refreshing and
The situation of polarity inversion is carried out, the number that the polarity inversion of data-signal is carried out in source electrode driver 41 can be described as tailing off.
On the other hand, refresh rate polarity inversion control unit 32, is with source less than the situation (being no in S104) for having determined frequency
The mode that the polarity inversion of the data-signal of driver 41 is carried out with refresh rate same frequency and with refresh synchronization controls source electrode to drive
Dynamic device 41 (S108).In other words, polarity inversion control unit 32, polarity inversion number reduction as mentioned is not made.
In addition, the value of described " having determined frequency ", corresponds to polar inversion method and the display driving of source electrode driver 41
The refresh rate for the display panel 2 that portion 4 can be set and suitably determine.Particularly, it is described to have determined frequency, be contemplated to be display panel 2 it
Image flickers (flicker, flicker) as the frequency for the degree being difficult to.In addition, " flicker is difficult to " said herein,
Refer to human eye viewing display panel 2 display picture when, substantially None- identified flicker state.The refreshing of display picture
Rate turns into more than specified frequency (although for example, being the not limited to this before and after universal liquid crystal display device 50Hz)
When, the flicker of display picture is difficult to.Therefore, the fixed frequency, being contemplated to be is becoming to flash the frequency being difficult to
It is more than rate.
In addition, described determined frequency, it is the bottom line for it is expected to drive more than display panel 2 and display drive division 4
Refresh rate.The fixed frequency, it is expected at least above 60Hz it is, in present embodiment.It is in addition, described fixed
The value of the value of frequency or refresh rate (60Hz) higher than universal display device.
In addition, explanation thereafter, as one, fixed frequency is 120Hz.It is, polarity inversion control unit 32 is
The refresh rate of display panel 2 is in more than 120Hz, i.e., in the case where high speed refreshes driving, the friendship that is applied with source electrode driver 41
Flowing the frequency of voltage turns into the mode for being less than 120Hz frequencies (such as 60Hz), controls source electrode driver 41.
《Image update and the opportunity of polarity inversion》
Last, reference picture 3 illustrate the refresh rate on display panel 2, source electrode driver 41 driving opportunity, with during driving
The polar relationship of source electrode driver 41.Fig. 3 is to represent the refresh rate of display panel 2, the driving opportunity of source electrode driver 41 and drive
The figure of the relation of polarity when dynamic." reception view data " in figure is to represent the figure that display control unit 3 receives from main frame 1 OK
As opportunity of the data storage in holder 10.In addition, the block of " driving of source electrode driver and polarity " row is to represent source electrode
The driving (during one is vertical) of one frame amount of driver 41, represent the mark of the "+" and "-" in the paragraph.In addition, Fig. 3 and this
Figure afterwards is as one, although representing to carry out full situation about showing in vain, the situation beyond complete white display on display panel 2
Carry out identically with following processing.
Display control unit 3 is when starting to receive the view data from main frame 1, at any time to arrive the data storage of reception
Holder 10.In addition, TG20 is at the beginning of the storage, the view data stored in holder 10 is read, with opportunity
Signal is sent to display drive division 4 simultaneously.Now, TG20 is to send refreshing information to reversal frequency determination section 30, passes through reversion
Frequency determination section 30 carries out described polarity inversion control process, controls the frequency of the output AC voltage of source electrode driver 41.
As a result, as shown in figure 3, staggering the time slightly from view data of the reception from main frame 1 is started, the drive of source electrode driver 41 is carried out
It is dynamic (that is, to display panel 2 pixel data-signal write-in), and display panel 2 refreshes.
Period A and period C represent situation about typically driving, polarity inversion control unit 32 with the frequency of polarity inversion become with
The equal mode of the refresh rate of display panel 2, controls the frequency of the output voltage of source electrode driver 41, and with polarity inversion when
The machine mode synchronous with the opportunity refreshed controls source electrode driver 41.On the other hand, represent to refresh the feelings of driving at a high speed in period B
Condition, polarity inversion control unit 32 control the defeated of source electrode driver 41 in a manner of the frequency of polarity inversion gets lower than refresh rate
Go out the frequency of voltage.Specifically, the frequency of the polarity inversion of source electrode driver 41, directly it is with typically driving identical
60Hz.In other words, source electrode driver 41 is in period B, and the refreshing of display panel 2 is often carried out twice, with regard to carrying out data once
The polarity inversion of signal, the row of period B its " driving of source electrode driver and polarity ", when the refreshing of even-times, although entering
Row refreshes but polarity inversion will not occur.
Consequently, it is possible to polarity inversion control unit 32, by making the frequency of polarity inversion less than the refresh rate frequency of display picture
Rate, compared to polarity inversion frequency and display picture refresh rate same frequency situation, the polarity of time per unit can be made anti-
Turning number can be reduced (the polarity inversion cycle can be elongated).Therefore, to the pixel to polarity inversion and data signal line discharge and recharge
Deng, can have save polarity inversion consumption electric power effect.
In addition, polarity inversion control unit 32, display panel 2 refreshing in the case where having determined more than frequency, polarity is anti-
The frequency turned is less than the refresh rate.Here, described determined frequency, as be difficult to display panel 2 display picture it
In the case of the frequency more than frequency of flicker, in polarity inversion control unit 32, refresh rate is high with being difficult to flicker level
In the case of, the frequency of polarity inversion, which turns into, to be reduced.Thus it is guaranteed that while the display quality of the view data of display panel 2,
The consumption electric power of polarity inversion can be saved.
In addition, polarity inversion control unit 32, display panel 2 determined frequency (refresh rate when refreshing driving at a high speed) with
On situation (being yes in S104), frequency (the general driving that the application alternating voltage of source electrode driver 41 can also be less than 60Hz
When refresh rate, the second refresh rate).In other words, in the present embodiment, when reducing the frequency of polarity inversion, the frequency is made
Which kind of degree is rate, which be reduced to, is not particularly limited.Hereinafter, illustrated using Fig. 4 on modified embodiment of the present embodiment.Fig. 4 is to represent
Other figures of the relation of polarity when the refresh rate of display panel 2, the driving opportunity of source electrode driver 41 and driving.
In addition, omitted the description in Fig. 4 with Fig. 3 identicals part.Hereinafter, it is also identical on Fig. 7 and Fig. 8.
In Fig. 4, the situation of driving, polarity inversion control unit 32, with polarity inversion frequency are refreshed in the period B high speeds represented
Rate turns into the mode of the frequency of refresh rate during less than general driving, controls the frequency of the output voltage of source electrode driver 41.Tool
For body, as shown in " output voltage of source electrode driver " row, turn into 30Hz more low-frequency compared with polarity inversion frequency.Change speech
It, in period B, the refreshing of display panel 2 is often carried out four times source electrode driver 41, the polarity with regard to carrying out data-signal once
Reversion.Thus, when being reduced to polarity inversion frequency and typically driving identical frequency (60Hz), polarity can further be saved
The consumption electric power of reversion.
In addition, in the case that example as shown in Figure 4 drives display panel 2, it is expected to be set to Fig. 2 S104
Judgment standard frequency (fixed frequency), be difficult to identification flicker frequency.Because the frequency of refresh rate is described
Situation more than specific frequency, even if being greatly reduced compared to polarity inversion frequency, the frequency of refresh rate is less than described specific
Frequency situation, it is difficult to identification flicker.Thus, the display quality of guarantee display panel 2 can be continued, and polarity inversion can be made
Consumption electric power reduces more.
[embodiment two]
Furthermore the polarity inversion control unit 32 of the present invention or consideration represent whether the image of view data has aobvious
Show the feature of identification flicker easy to user when panel 2 is shown, and determine the frequency of polarity inversion.Hereinafter, using Fig. 5~7
Illustrate on second embodiment of the present invention.In addition, each embodiment thereafter, for the convenience of explanation, on
In the embodiment it is stated that part there is the part of identical function, add identical symbol, the description thereof will be omitted.
《Major part is formed》
Fig. 5 is the block diagram that the major part for the display device 200 for representing present embodiment is formed.TG60, it is the machine except TG20
Outside energy, also with graphical analysis portion 61 (image change judging part, flicker judging part).Graphical analysis portion 61, it is to judge to represent
The image for the view data that TG60 is read from holder 10, if there is the user when display panel 2 is shown easily to identify sudden strain of a muscle
Bright characteristic person.TG60 is sent to instead when sending refreshing information using the judged result in graphical analysis portion 61 as image information
Turn frequency determination section 30.
In addition, although the judgment standard in graphical analysis portion 61 is not particularly limited, analysis for example represents image
Lightness, chroma and form and aspect of the image of data etc., in the case where using Neutral colour more than fixed-ratio, it can also judge
Into " image with the easily feature of identification flicker ".Specify the polarity of source electrode driver 41 anti-in other such as graphical analysis portion 61
Shifting method (frame inversion driving mode, column inversion type of drive, line inversion driving mode or dot inversion type of drive etc.), figure
As data can be the situation that represents to turn into the image for the colour killing pattern (killer pattern) of polar inversion method specified,
It can also judge into " image with the easily feature of identification flicker ".For example, have and inversion driving mode identical space
The image (such as in column inversion type of drive, in the vertical stripes image of each column tone rise and fall) of frequency, in the reversion
It may be colour killing pattern in type of drive.
《Polarity inversion control process》
The polarity inversion control unit 33 of reversal frequency determination section 30, the frequency of polarity inversion is determined corresponding to described image information
Rate.Hereinafter, the polarity inversion control process of the reversal frequency determination section 30 comprising polarity inversion control unit 33 is illustrated using Fig. 6
Flow.Fig. 6 is the flow chart of the flow of the polarity inversion control process for the reversal frequency determination section 30 for representing present embodiment.Instead
Turn frequency determination section 30 and receive refreshing information and when image information (S200) from TG60, it is aobvious in the detection of refresh rate test section 31
Show the refresh rate (S202, detecting step) of panel 2.In addition, polarity inversion control unit 33, from image information, specifies TG60 to send
Whether the view data to display drive division 4 has the view data (S204) of the easily feature of identification flicker.In addition, S202 with
S204 processing sequence is different.Here, the situation (being no in S204) of the image in the feature without easy identification flicker, pole
Sex reversal control unit 33 is by controlling the alternating current voltage frequency of the application of source electrode driver 41, to believe in the data of source electrode driver 41
Number polarity inversion less than refresh rate frequency carry out (S206, polarity inversion rate-determining steps).On the other hand, know with easy
The situation (being yes in S204) of the image for the feature not flashed, polarity inversion control unit 33, believed with the data of source electrode driver 41
Number polarity inversion and refresh rate same frequency and with refresh synchronization and the mode that carries out, control source electrode driver 41 (S208).
《Image update and the opportunity of polarity inversion》
Finally, reference picture 7 illustrate the refresh rate of the display panel 2 on present embodiment, source electrode driver 41 driving opportunity,
With the relation of the polarity of source electrode driver 41 during driving.Fig. 7 is refresh rate, the source electrode for the display panel 2 for representing display device 200
The figure of the relation of polarity when the driving opportunity of driver 41 and driving.As shown, in Fig. 4, period D~F displays of any one
Panel 2 drives to refresh at a high speed.Then, period D and F, is the feature that flicker is easily identified without view data, that is, represents difficult
During being sent with the image of identification flicker from main frame 1, period E is the image with the easily feature of identification flicker, that is, is represented
During easily the image of identification flicker is sent from main frame 1.
Such as period E, graphical analysis portion 61 judges the expression image of view data for the phase of " the easily image of identification flicker "
Between, the polarity inversion control unit 33 of the reversal frequency determination section 30 for the image information for representing the judged result is received, pole is set
The frequency of sex reversal frequency identical with refresh rate, and control source electrode in a manner of the opportunity of polarity inversion is synchronous with the opportunity refreshed
Driver 41.
On the other hand, such as period D and F, graphical analysis portion 61 judges the expression image of view data " to be difficult to flash
Image " during, polarity inversion control unit 33 makes the frequency of polarity inversion be less than refresh rate.For example, polarity inversion control unit
33 as shown, the frequency of polarity inversion is reduced to typically driving identical 60Hz.
Compared to the situation that display panel 2 shows the easily image of identification flicker, the display of display panel 2 is difficult to flash
Image situation, even if polarity inversion frequency reduce, it is also difficult to identification flicker.Consequently, it is possible to by being difficult to know in display
Make during the image not flashed polarity inversion frequency reduction, ensure display panel 2 view data display quality simultaneously,
Can have makes the effect that the consumption electric power of polarity inversion reduces.
In addition it is also possible to combine the composition for being recorded in embodiment one, the composition with being recorded in embodiment two.That is, it is aobvious
Show the refresh rate of panel 2 more than fixed frequency, and the view data shown in display panel 2 is being difficult to the feelings of flicker
Under condition, polarity inversion control unit 33 can also make polarity inversion frequency be less than refresh rate.Thus, refresh rate is (example to a certain degree
Such as at a high speed refresh driving when) height, and display panel 2 show image say it is to be difficult to flash, even if only in polarity
Reversal frequency, which reduces, to be also more difficult under the situation of identification flicker, can make the frequency of polarity inversion reduce.Therefore, it more can guarantee that display surface
While the picture display quality of plate 2, it can also suppress the consumption electric power of polarity inversion.
[embodiment three]
In addition, graphical analysis portion 61, it can also substitute and judge the whether easily identification flicker of the image of pictorial data representation, but from
The view data of display drive division 4 is once sent to before view data, to judge whether to change.Hereinafter, illustrate to close using Fig. 8
In third embodiment of the present invention.
In the present embodiment, graphical analysis portion 61, be compare TG60 read from holder 10 view data, with it is previous
The secondary view data for being sent to display drive division 4, to judge from the view data that holder 10 is read and the preceding figure once sent
Seem no change (whether being different view data).Then, TG60 is by the judged result in expression graphical analysis portion 61
Information is sent to reversal frequency determination section 30 as image information.
The polarity inversion control unit 33 of reversal frequency determination section 30, polarity inversion is determined corresponding to described image information
Frequency.Image information table show view data in the past once send view data change situation, if polarity inversion control unit
33 polarity inversion frequency turns into frequency identical with refresh rate.On the other hand, show view data in the past once in image information table
The unchanged situation of view data of transmission, the polarity inversion frequency of polarity inversion control unit 33, with as less than refresh rate
The mode of frequency controls source electrode driver 41.
Fig. 8 is when representing the refresh rate of the display panel 2 of the present invention, the driving opportunity of source electrode driver 41 and driving
The figure of the relation of polarity.As shown, Fig. 7 is also identical in fig. 8, period G~I any one, display panel 2 at a high speed refresh drive
It is dynamic.Then, period G and I, during representing view data unchanged (display panel 2 shows still image), period H represents figure
During changing (display panel 2 shows animation) per frame as data.
Such as period H, the image information sent from graphical analysis portion 61, during view data change is represented, table is received
Show the polarity inversion control unit 33 of the reversal frequency determination section 30 of the image information of the judged result, by the frequency of polarity inversion
Frequency identical with refresh rate is set to, and source electrode driver is controlled in a manner of the opportunity of polarity inversion is synchronous with the opportunity refreshed
41。
On the other hand, such as period G and I, the image information sent from graphical analysis portion 61, do not change in expression view data
During, polarity inversion control unit 33 makes the frequency of polarity inversion be less than refresh rate.For example, polarity inversion control unit 33 is as schemed
Show, the frequency of polarity inversion is reduced to typically driving identical 60Hz.
Compared to the situation that animation is shown in display panel 2, i.e., situation about changing in display panel 2 per two field picture, display
The situation of still image, the anxiety of the rare display quality reduction that view data such as (hangovers) is obscured with image.Therefore, by aobvious
In the case of showing that panel 2 shows still image, make the frequency of polarity inversion reduce, on the other hand, animation is shown in display panel 2
In the case of, make the frequency of polarity inversion not reduce, while ensureing the display quality of view data of display panel 2, also can
With the effect for reducing the consumption electric power of polarity inversion.
In addition it is also possible to the composition for being recorded in embodiment three is combined, with being recorded at least appointing for embodiment one and two
One.That is, polarity inversion control unit 33 or the refresh rate corresponding to display panel 2, the figure in the display of display panel 2
As data whether be difficult to flicker image, view data whether change at least any one, decide whether to make polarity anti-
The frequency turned is less than refresh rate.Thereby it is ensured that while the display quality of image of display panel 2, it can also suppress polarity inversion
Consumption electric power.
[variation]
In addition, in each embodiment, TG20 (or TG60) can also be from the transmission interval of timing signals, Huo Zhecong
The time reference detection refresh rate that main frame 1 receives, reversal frequency determination section 30 is sent to using the refresh rate as refreshing information.This
Situation, reversal frequency determination section 30 can not have refresh rate test section 31, polarity inversion control unit 32 (or polarity inversion
Control unit 33), can also the refresh rate based on the refreshing information of expression, carry out the processing illustrated in each embodiment.
In addition, the embodiment two and three graphical analysis portion 61 carry out processing or carried out in main frame 1.
View data is sent to display control unit 3 by this situation, main frame 1 with image information simultaneously, and display control unit 3 can also stored up
Storage 10 or TG20 keep described image information.
In addition, polarity inversion control unit 32 be carried out as every frame (each vertical during) source electrode driver 41 polarity it is anti-
Turn control and illustrate.In other words, polarity inversion control unit 32 is as situation for refreshing driving even in high speed etc. one
Become during frame in short-term, instruction is controlled to source electrode driver 41 per frame and illustrated.However, in each embodiment
In or only polarity inversion control unit 32 change source electrode driver 41 alternating voltage frequency (that is, change polarity
The frequency of reversion) when, indicate the change in source electrode driver 41.Then or source electrode driver 41 receives the instruction
Afterwards, the frequency of output AC transformation is changed.Thus, due to every frame source electrode driver 41 is not sent control instruction can also, it is high
During speed refreshing driving etc., even if in the case of being shortened during a frame, can also prevent the control of source electrode driver 41 from postponing.Especially
It is that, in the case where reversal frequency determination section 30 is implemented in software, high situation of the refresh rate of display panel 2 etc. is effective.
[embodiment of software]
The control block (particularly TG20 or TG60 and reversal frequency determination section 30) of display control unit 3, can also pass through
The logic circuit (hardware) of the formation such as integrated circuit (IC chip) and realize, can also be by using CPU (Central
Processing Unit) software and realize.
In the latter case, display control unit 3, possess and realize that the software of each function carries out the CPU of program command, institute
State program and various data and (claim these with the ROM (Read Only Memory) or memory storage of computer-readable record
For " storage medium ") and expansion described program RAM (Random Access Memory) etc..Then, computer is passed through
(or CPU) reads from the storage medium and carries out described program, reaches the purpose of the present invention.As the storage medium,
It is " tangible medium of non-transitory ", can uses for example：Tape, disk, card, semiconductor memory, PLD
Deng.In addition, described program or any transmission medium (communication network or broadcast wave etc.) via the transmittable program,
Supply to the computer.Transmitted in addition, the present invention is described program by electro and instantiated, even embedment carrier wave
The mode of data-signal can also be realized.
[summary]
The control device (display control unit 3) of mode one of the present invention, be can change write-in display device (display device 100 or
200) control device of the polarity inversion frequency of the data-signal of pixel, it is characterised in that possess：Test section (examine by refresh rate
Survey portion 31), detect the display picture (display panel 2) of the display device；Polarity inversion control unit (polarity inversion control unit 32
Or 33), the polarity inversion is carried out with the frequency of the refresh rate detected less than the test section.
If according to described composition, polarity inversion control unit, it is set to and display picture compared to by polarity inversion frequency
The identical frequency of refresh rate situation, can reduce the polarity inversion number of time per unit.Therefore, filling for polarity inversion
Electric discharge etc., there is the effect for the consumption electric power that can save polarity inversion.
The control device of the mode two of the present invention, in the mode one, the display device is to change the display
The display device of the refresh rate of picture, the polarity inversion control unit, brush can also gone out described in test section detection
In the case that new rate is more than fixed frequency, to carry out the polarity inversion less than the frequency of the refresh rate.
If according to described composition, polarity inversion control unit, in refresh rate in the case where having determined more than frequency, can save
Save the consumption electric power of polarity inversion.Particularly, in the high frequency for having determined frequency in the flicker level for being difficult to display picture
In the case of rate, polarity inversion control unit, polarity inversion frequency is set to be less than the refresh rate in the case where being difficult to flicker.
Thereby it is ensured that while the display quality of the image of display picture, there is the effect for the consumption electric power that can save polarity inversion.
The control device of the mode three of the present invention, in the mode two, the polarity inversion control unit can also be in institute
State test section detect the refresh rate it is described determined more than frequency in the case of, and determined the described of frequency less than described and shown
The second refresh rate (refresh rate during general driving) of the refresh rate of showing device, is entered with being more below the frequency of second refresh rate
The row polarity inversion.
The frequency of polarity inversion is lower, and the consumption electric power of polarity inversion is more reduced.Therefore, according to described composition, have
The lower effect of the consumption electric power of polarity inversion can be made.
The present invention mode four control device, be the mode one to three either type in, possess image change and sentence
Disconnected portion (graphical analysis portion 61), it judges whether the image that the image that the display device is shown is shown from the frame of eve becomes
Change, the polarity inversion control unit can also be described image change judging part judge that described image is unchanged in the case of,
To carry out the polarity inversion less than the frequency of the refresh rate.
Situation compared to the image shown in display picture from frame change before, the unchanged situation of described image,
Be difficult to occur image it is fuzzy wait, the display quality of the image of display picture it is poor.Therefore, by the image that is shown in display picture not
In the case of change, make the reduction of polarity inversion frequency, while ensureing the display quality of image of display picture, pole can be made by having
The effect that the consumption electric power of sex reversal reduces.
The control device of mode five of the present invention, it is in the either type of the mode one to four, possesses flicker judging part
(graphical analysis portion 61), it judges the image that the display device is shown, if there is flicker easily to know another characteristic；The pole
Sex reversal control unit or it is described flicker judging part judge described image without flicker easily knowledge another characteristic feelings
Under condition, to carry out the polarity inversion less than the frequency of the refresh rate.
Compared to the image that the feature for having a case that easily to identify flicker is shown in display picture, display picture does not have
The easily situation of the image of the feature of identification flicker, even if polarity inversion frequency declines, it is also difficult to identification flicker.Therefore according to institute
The composition stated, by when display picture is shown without the easily image of the feature of identification flicker, making under polarity inversion frequency
Drop, while ensureing the display quality of image of display picture, the effect that the consumption electric power of polarity inversion reduces can be made by having.
The control device of mode six of the present invention, can correspond to the control described in the either type of the mode one to five
The control of device, make the polarity inversion of data-signal for being written to pixel.
According to described composition, there is identical effect with the control device of the either type of the mode one to five.
The control method of mode seven of the present invention, it is that the polarity for the data-signal that can change the pixel for being written to display device is anti-
Turn the control method (polarity inversion control process) of the control device of frequency, it is characterised in that possess the detection display device
The detecting step (S102 or S202) of refresh rate of display picture, the refreshing to be detected less than the detecting step
The frequency of rate carries out the polarity inversion rate-determining steps (S106 or S206) of the polarity inversion.
If according to described composition, there is the control device identical effect with the mode one.
The control device of each mode of the present invention, can also be realized by computer, in the case, by making computer
As each portion (software elements) running for possessing the control device, make the control device in computer implemented control device
Control program, and record the storage medium that can be read of these computer and also fall into scope of the invention.
, can be in various changes in the scope shown in claims, on suitable the invention is not restricted to described each embodiment
The embodiment that the technical mode that different embodiments discloses respectively is obtained is combined, is also contained in the technical of the present invention
Scope.Furthermore the technical mode disclosed respectively by being combined in each embodiment, new technical feature can be formed.
The present invention can compatibly be used in the control dress of the polarity for the data-signal for controlling the pixel for being written to display device
Put.Mobile terminal of the present invention etc., especially can be suitably in the case where requiring the reduction of consumption electric power of display device
Utilize.
The explanation of reference
100th, 200 display device
1 main frame
2 display panels (display picture)
3 display control units (control device)
4 display drive divisions
10 holders
20、60 TG
61 graphical analysis portions (image change judging part, flicker judging part)
30 reversal frequency determination sections
31 refresh rate test sections (test section)
32nd, 33 polarity inversion control unit
41 source electrode drivers
Claims (8)
1. a kind of control device, can change the polarity inversion frequency of the data-signal of the pixel of write-in display device, its feature exists
In possessing：
Test section, detect the refresh rate of the display picture of the display device；
Polarity inversion control unit, the polarity inversion is carried out with the frequency of the refresh rate detected less than the test section.
2. control device as claimed in claim 1, it is characterised in that the display device is to change the display picture
The display device of the refresh rate；
The polarity inversion control unit, in the case where the test section detects the refresh rate more than fixed frequency,
To carry out the polarity inversion less than the frequency of the refresh rate.
3. control device as claimed in claim 2, it is characterised in that the polarity inversion control unit, examined in the test section
Measure the refresh rate it is described determined more than frequency in the case of, carry out the polarity to be more below the frequency of the second refresh rate
Reversion, second refresh rate are less than the refresh rate of the display device for having determined frequency.
4. control device as claimed any one in claims 1 to 3, it is characterised in that possess image change judging part, it is sentenced
The image that shows of the display device of breaking whether the image change shown from the frame of eve；The polarity inversion control unit,
In the case of described image change judging part judges that described image is unchanged, to carry out the pole less than the frequency of the refresh rate
Sex reversal.
5. the control device as any one of Claims 1-4, it is characterised in that possess flicker judging part, it judges institute
State whether the image that display device is shown there is flicker easily to know another characteristic；
The polarity inversion control unit, judge that described image easily knows another characteristic without flicker in the flicker judging part
In the case of, to carry out the polarity inversion less than the frequency of the refresh rate.
A kind of 6. display device, it is characterised in that corresponding to the control of the control device any one of claim 1 to 5,
Make the polarity inversion of data-signal for being written to pixel.
7. a kind of control method of control device, the polarity inversion frequency of the data-signal for the pixel for being written to display device can be changed
Rate, it is characterised in that include：
Detecting step, detect the refresh rate of the display picture of the display device；
Polarity inversion rate-determining steps, it is anti-that the polarity is carried out with the frequency of the refresh rate detected less than the detecting step
Turn.
A kind of 8. control program, to make computer as the control device running described in claim 1, it is characterised in that use
So that computer operates as the test section and the polarity inversion control unit.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015-115193 | 2015-06-05 | ||
| JP2015115193 | 2015-06-05 | ||
| PCT/JP2016/065875 WO2016194864A1 (en) | 2015-06-05 | 2016-05-30 | Control device, display device, control method, and control program |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107615369A true CN107615369A (en) | 2018-01-19 |
| CN107615369B CN107615369B (en) | 2020-09-22 |
Family
ID=57442298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680026141.8A Expired - Fee Related CN107615369B (en) | 2015-06-05 | 2016-05-30 | Control device, display device, control method, and computer-readable storage medium |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US10311813B2 (en) |
| JP (1) | JP6609313B2 (en) |
| CN (1) | CN107615369B (en) |
| WO (1) | WO2016194864A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108322737A (en) * | 2018-02-08 | 2018-07-24 | 广东欧珀移动通信有限公司 | Image frame per second measurement method and device |
| CN109215592A (en) * | 2018-09-26 | 2019-01-15 | 惠科股份有限公司 | Driving method, device and the display device of display panel |
| CN110827771A (en) * | 2018-08-07 | 2020-02-21 | 乐金显示有限公司 | Liquid crystal display device and driving method thereof |
| CN114120933A (en) * | 2021-12-06 | 2022-03-01 | 京东方科技集团股份有限公司 | Display panel driving method and display device |
| CN114743515A (en) * | 2022-03-21 | 2022-07-12 | 惠科股份有限公司 | Liquid crystal display panel and polarity control method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108604437A (en) * | 2016-01-28 | 2018-09-28 | 夏普株式会社 | Display device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009003420A (en) * | 2007-05-21 | 2009-01-08 | Victor Co Of Japan Ltd | Video signal display apparatus and method for reproducing video signal |
| CN102237066A (en) * | 2011-08-18 | 2011-11-09 | 青岛海信电器股份有限公司 | Liquid crystal display and method for improving contrast ratio of image |
| CN102237058A (en) * | 2010-04-29 | 2011-11-09 | 瀚宇彩晶股份有限公司 | Display controller and driving method of liquid crystal display panel |
| WO2013024754A1 (en) * | 2011-08-12 | 2013-02-21 | シャープ株式会社 | Display device |
| WO2013125406A1 (en) * | 2012-02-20 | 2013-08-29 | シャープ株式会社 | Drive device and display device |
| US20140368484A1 (en) * | 2012-02-02 | 2014-12-18 | Sharp Kabushiki Kaisha | Display device and method for driving the same |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100953143B1 (en) | 2007-05-21 | 2010-04-16 | 닛뽕빅터 가부시키가이샤 | Image signal display apparatus and image signal display method |
| JP5160836B2 (en) | 2007-08-08 | 2013-03-13 | ルネサスエレクトロニクス株式会社 | Television receiver |
| JP5290481B2 (en) | 2011-04-07 | 2013-09-18 | シャープ株式会社 | Display device, driving method thereof, and electronic apparatus |
| JP6199062B2 (en) * | 2013-04-18 | 2017-09-20 | シャープ株式会社 | Display device and display method |
-
2016
- 2016-05-30 US US15/571,485 patent/US10311813B2/en not_active Expired - Fee Related
- 2016-05-30 CN CN201680026141.8A patent/CN107615369B/en not_active Expired - Fee Related
- 2016-05-30 JP JP2017521932A patent/JP6609313B2/en not_active Expired - Fee Related
- 2016-05-30 WO PCT/JP2016/065875 patent/WO2016194864A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009003420A (en) * | 2007-05-21 | 2009-01-08 | Victor Co Of Japan Ltd | Video signal display apparatus and method for reproducing video signal |
| CN102237058A (en) * | 2010-04-29 | 2011-11-09 | 瀚宇彩晶股份有限公司 | Display controller and driving method of liquid crystal display panel |
| WO2013024754A1 (en) * | 2011-08-12 | 2013-02-21 | シャープ株式会社 | Display device |
| CN102237066A (en) * | 2011-08-18 | 2011-11-09 | 青岛海信电器股份有限公司 | Liquid crystal display and method for improving contrast ratio of image |
| US20140368484A1 (en) * | 2012-02-02 | 2014-12-18 | Sharp Kabushiki Kaisha | Display device and method for driving the same |
| WO2013125406A1 (en) * | 2012-02-20 | 2013-08-29 | シャープ株式会社 | Drive device and display device |
| CN104115216A (en) * | 2012-02-20 | 2014-10-22 | 夏普株式会社 | Driving device and display device |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108322737A (en) * | 2018-02-08 | 2018-07-24 | 广东欧珀移动通信有限公司 | Image frame per second measurement method and device |
| CN110827771A (en) * | 2018-08-07 | 2020-02-21 | 乐金显示有限公司 | Liquid crystal display device and driving method thereof |
| CN109215592A (en) * | 2018-09-26 | 2019-01-15 | 惠科股份有限公司 | Driving method, device and the display device of display panel |
| US11361721B2 (en) | 2018-09-26 | 2022-06-14 | HKC Corporation Limited | Method and device for driving display panel, and display device |
| CN114120933A (en) * | 2021-12-06 | 2022-03-01 | 京东方科技集团股份有限公司 | Display panel driving method and display device |
| WO2023103520A1 (en) * | 2021-12-06 | 2023-06-15 | 京东方科技集团股份有限公司 | Driving method for display panel, and display apparatus |
| CN114743515A (en) * | 2022-03-21 | 2022-07-12 | 惠科股份有限公司 | Liquid crystal display panel and polarity control method thereof |
| CN114743515B (en) * | 2022-03-21 | 2023-10-24 | 惠科股份有限公司 | Liquid crystal display panel and polarity control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6609313B2 (en) | 2019-11-20 |
| WO2016194864A1 (en) | 2016-12-08 |
| US20180130433A1 (en) | 2018-05-10 |
| JPWO2016194864A1 (en) | 2018-02-22 |
| CN107615369B (en) | 2020-09-22 |
| US10311813B2 (en) | 2019-06-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107615369A (en) | control device, display device, control method and control program | |
| JP6085739B1 (en) | Low power consumption display device | |
| US9837030B2 (en) | Refresh rate dependent adaptive dithering for a variable refresh rate display | |
| US7362299B2 (en) | Liquid crystal display device, driving circuit for the same and driving method for the same | |
| US10726804B2 (en) | Display device and display driving method thereof | |
| US7499043B2 (en) | Switching of display refresh rates | |
| KR102234512B1 (en) | Display device, electronic device having display device and method of driving the same | |
| CN105556587B (en) | The control method of control device and control device | |
| CN104662596B (en) | Liquid-crystal display device and drive method thereof | |
| JP2004151222A (en) | Liquid crystal display control unit and liquid crystal display device | |
| JP2014211537A (en) | Control device, display device, and control method | |
| CN113314083A (en) | Display device | |
| TW201413695A (en) | Display control system, processor, controller, and, display control method | |
| KR102100915B1 (en) | Timing Controller for Display Device and Timing Controlling Method thereof | |
| TW201040928A (en) | Liquid crystal display device and driving method thereof | |
| KR20100076626A (en) | Display apparatus and method for driving the same | |
| US9881566B2 (en) | Display device, electronic apparatus, and control method for display device | |
| US20080048966A1 (en) | Displaying method for liquid crystal display | |
| KR20150011173A (en) | Display device and driving method thereof | |
| KR20160142473A (en) | Display panel driving apparatus, method of driving display panel using the same, and display apparatus having the same | |
| JP2003195828A (en) | Display device, information processor, display method, program, and recording medium | |
| CN113393818B (en) | Adjusting method and adjusting device of display panel | |
| JP2006267303A (en) | Display apparatus and driving method thereof | |
| KR20130086433A (en) | Signal processing apparatus and method thereof | |
| JP4048749B2 (en) | Display unit having RAM built-in driver IC and electronic device using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200922 |